Chalcogenide-glass nested anti-resonant nodeless fibers in mid-infrared region

Jiajing Tu, B. Zhang, Zhengyong Liu, Xian Zhou, Keping Long, Zhaohui Li, Chao Lu, Changyuan Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)


We propose two types of chalcogenide-glass nested anti-resonant nodeless fibers (CNANFs) with four anti-resonant elements, in which a smaller tube is nested. One type of CNANF theoretically achieves ultra-low loss of 2.6 dB/km at the wavelength of 10.6 μm and can be used for the delivery of a high-power CO2 laser. The other CNANF is a polarization-maintaining CNANF in the broadband mid-infrared (mid-IR) region. We investigate the tradeoff between loss and birefringence in the mid-IR region and achieve a low loss of <1 dB/m and high birefringence of >1× 10-4 simultaneously over a large wavelength band by adjusting the air-core size and the thickness of the vertical/horizontal outer tubes. Both CNANFs show strong capability for higher order mode suppression.

Original languageEnglish
Article number8465972
Pages (from-to)5244-5253
Number of pages10
JournalJournal of Lightwave Technology
Issue number22
Publication statusPublished - 15 Nov 2018


  • Application in mid-infrared region
  • chacogenide-glass microstructured fiber
  • high-birefringence
  • hollow-core anti-resonant fiber
  • large higher-order mode extinction ratio

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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